參數資料
型號: μPD784038Y
廠商: NEC Corp.
英文描述: 8/16 Bit Single Chip Microcontrollers(8/16 位微控制器)
中文描述: 8 / 16位單片機微控制器(8 / 16位微控制器)
文件頁數: 15/70頁
文件大小: 464K
代理商: ΜPD784038Y
15
m
PD784035Y,784036Y,784037Y,784038Y
5.3 Types of Pin I/O Circuits and Connections for Unused Pins
Table 5-1 shows types of pin I/O circuits and the connections for unused pins.
For the input/output circuit of each type, refer to Figure 5-1.
Table 5-1. Types of Pin I/O Circuits and Connections for Unused Pins
Pin Name
I/O Circuit Type
I/O
Recommended Connection for Unused Pins
P00-P07
5-A
I/O
Input: Connect to V
DD
P10/PWM0
P11/PWM1
Output: Open
P12/ASCK2/SCK2
8-A
P13/RxD2/SI2
5-A
P14/TxD2/SO2
P15-P17
P20/NMI
2
Input
Connect to V
DD
or V
SS
.
P21/INTP0
P22/INTP1
2-A
Connect to V
DD
.
P23/INTP2/CI
P24/INTP3
P25/INTP4/ASCK/SCK1 8-A
I/O
Input: Connect to V
DD
Output: Open
P26/INTP5
2-A
Input
Connect to V
DD
.
P27/SI0
P30/RxD/SI1
5-A
I/O
Input: Connect to V
DD
.
P31/TxD/SO1
Output: Open
P32/SCK0/SCL
10-A
P33/SO0/SDA
P34/TO0-P37/TO3
5-A
P40/AD0-P47/AD7
P50/A8-P57/A15
P60/A16-P63/A19
P64/RD
P65/WR
P66/WAIT/HLDRQ
P67/REFRQ/HLDAK
P70/ANI0-P77/ANI7
20
I/O
Input: Connect to V
DD
or V
SS
.
Output: Open
ANO0, ANO1
12
Output
Open
ASTB/CLKOUT
4
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